Function wasm_func_param_arity 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn wasm_func_param_arity(
    f: &wasm_func_t,
) -> usize

Returns the number of parameter types of the wasm_func_t.

Wraps Func::ty, followed by FuncType::params and a call to len.

Safety

It is the caller’s responsibility not to alias the wasm_func_t with its underlying, internal WasmStoreRef.